Quantitative Aptitude - Arithmetic Ability Questions

What is the value of 23+5252-23 ?

What will be the roots of the quadratic equation x2 - 25x + 156 = 0?

An angle is (2/3)rd of its supplementary angle. What is the measure of the angle?

If  C+1C = 3, then what is the value of C3+1C3 = ?

20% of a man's salary is paid as rent, 60% are his living expenses and 10% are his savings. If he spends remaining  30 on the education of his children, find his salary

If 21% of an electricity bill is discounted, Rs 1817 is still to be paid. How much was the original bill amount?

If a retailer offers a discount of 32% on the marked price of his goods and thus ends up selling at cost price, what was the % markup price?

In the given figure, ABC is a right angled triangle. ABC = 90 deg and ACB = 60 deg. If the radius of the smaller circle is 2 cm, then what is the radius (in cm) of the larger circle?